numDocs

hasVectors

segDeletes

deletedDocs

termIndexInterval

public final int termIndexInterval

Expert: The fraction of terms in the "dictionary" which should be stored
in RAM. Smaller values use more memory, but make searching slightly
faster, while larger values use less memory and make searching slightly
slower. Searching is typically not dominated by dictionary lookup, so
tweaking this is rarely useful.

skipInterval

public final int skipInterval

Expert: The fraction of TermDocs entries stored in skip tables,
used to accelerate TermDocs.skipTo(int). Larger values result in
smaller indexes, greater acceleration, but fewer accelerable cases, while
smaller values result in bigger indexes, less acceleration and more
accelerable cases. More detailed experiments would be useful here.